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Photomechanical Switching Behavior of Semi‐Interpenetrating Polymer Network Consisting of Azobenzene‐Carrying Crosslinked Poly(vinyl ether) and Polycarbonate |
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| Authors: | Hyun‐Kyoung Kim Xiao‐Shui Wang Yukihiro Fujita Atsushi Sudo Haruo Nishida Masayuki Fujii Takeshi Endo |
| Abstract: | Summary: A novel semi‐interpenetrating polymer network (semi‐IPN) with photomechanical switching ability was developed by a cationic copolymerization of azobenzene‐containing vinyl ethers in a matrix of a linear polycarbonate (PC). The semi‐IPN film showed reversible deformation upon switching the UV irradiation on and off and responded with unprecedented rapidity. The photomechanical effect is attributed to a reversible change between the highly aggregated and dissociated states of the azobenzene groups.  The reversible UV response of the length of the semi‐IPN film at 25 °C. |
| Keywords: | azo polymers interpenetrating networks (IPN) isomer/isomerization photomechanical property poly(vinyl ether) |